Mac only: Windownaut overhauls window management on your Mac so you can arrange your windows in a multitude of ways, customize the functions of its title bar buttons, and lots more.

There are a lot of apps that manage your windows in similar ways—like Divvy, Cinch, and ShiftIt to name just a few—but Windownaut takes a new approach, adding tons of other features to your windows and their title bar buttons. With Windownaut, you can:

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Move and resize windows using modifier keys instead of having to click on the title bar or window edges.

Snap windows to any screen edge or corner, maximize, center, or move to a new space via drag-and-drop.

Snap windows to any screen edge or corner, maximize, center, or move to a new space via a custom keyboard shortcut for each position.

See all your possible window layouts for an individual window by right-clicking on the green "traffic light" button.

Show the current window's document in the Finder by right-clicking on the yellow "traffic light" button.

Quit the current application by right-clicking on the red "traffic light" button.

The traffic light features are all customizable as well: you can swap them between buttons, add modifiers, and even make them the default actions for those buttons when you left-click on them (who uses the green button anyway?). The whole app is extremely powerful and customizable, so if you feel held back by other window management applications, you might find what you're looking for with Windownaut.

Windownaut is a $4.99 download for Mac OS X with a free 14-day trial available. It works on both Snow Leopard and Lion.